Answer:
H. 2
Step-by-step explanation:
√(1 − cos² x) / sin x + √(1 − sin² x) / cos x
Use Pythagorean identity.
sin² x + cos² x = 1
So:
1 − cos² x = sin² x
and
1 − sin² x = cos² x
Substitute:
√(sin² x) / sin x + √(cos² x) / cos x
sin x / sin x + cos x / cos x
1 + 1
2
Answer:
under the condition of f(x)=x composite function is an identity one
Answer:
x y
1 1
5 17
6 21
7 25
Step-by-step explanation:
Answer:
31.5 hours
Step-by-step explanation:
2 hours for every 3 hours English so 21 divided by 2 =10.5 so 3 times 10.5 = 31.5 hours
